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Dean · 2010-11-24, 12:26 PM

OK, Good but confusing news...

Compression test results from a stone cold never broken in engine at 45-50PSI oil pressure:
1=102 & combustion has occurred.
2=91 No sign of combustion
3=97 No sign of combustion
4=99 No sign of combustion
I was right, 1 cylinder was firing. Little woot

In theory, I think cylinder 4 should be the one that I should be worried about since isn't cylinder 4 also at TDC when Cylinder 1 is and therefore the one the intake valve could be bent on from contact during timing belt install?

That 91 is a little low but I don't think too low unless it is the cylinder that is also at TDC when one is.

So now what?

No CELs on attempting to start. Fuel is getting to at least the third one along the rails if I have the order right.

The only CELs I have disabled relate to TGVs and O2 sensors.

In theory C&C just(4-5 months ago) cleaned and flow tested all injectors and I would assume they would throw a CEL if the ECU could not talk to them. odds of 3 coil packs failing simultaneously = near zero.

WTF!!! 3 bad brand new NGK spark plugs? Guess I can check center continuity.

2010-11-24, 12:26 PM	#93
Dean Señor Cheap Bastarde Real Name: Dean Join Date: May 2003 Location: $99 Tire Store Posts: 9,294 Car: $.04 STI Class: Fast,Cheap & Reliable=STI Deal, did somebody say Deal? Oh, Dean, yeah that's me.	OK, Good but confusing news... Compression test results from a stone cold never broken in engine at 45-50PSI oil pressure: 1=102 & combustion has occurred. 2=91 No sign of combustion 3=97 No sign of combustion 4=99 No sign of combustion I was right, 1 cylinder was firing. Little woot In theory, I think cylinder 4 should be the one that I should be worried about since isn't cylinder 4 also at TDC when Cylinder 1 is and therefore the one the intake valve could be bent on from contact during timing belt install? That 91 is a little low but I don't think too low unless it is the cylinder that is also at TDC when one is. So now what? No CELs on attempting to start. Fuel is getting to at least the third one along the rails if I have the order right. The only CELs I have disabled relate to TGVs and O2 sensors. In theory C&C just(4-5 months ago) cleaned and flow tested all injectors and I would assume they would throw a CEL if the ECU could not talk to them. odds of 3 coil packs failing simultaneously = near zero. WTF!!! 3 bad brand new NGK spark plugs? Guess I can check center continuity. __________________ I am a Commodore PET --- Now get off my lawn you kids... Last edited by Dean; 2010-11-24 at 12:31 PM.